Idemitsu Kosan Company, Limited

Sony Corporation

Joled Inc.

Hironobu Morishita

Kengo Hirata

Chishio Hosokawa

Yuichiro Kawamura

Takaaki Hikosaka

Shuji Sakamoto

Tomohiro Nagao

Hideyuki Miyamoto

Yasunori Kijima

Hiroyuki Tamura

Jun Endo

Yasushi Hamada

Masakazu Funahashi

Masato Nakamura

Hisayuki Kawamura

Tadahiko Yoshinaga

Emiko Kambe

Shigeyuki Matsunami

Yoshiaki Aoyama

A bischloroformate composition is represented by a formula (1) below, contains a plurality of Ar components, and has an average number of monomer units (m1), which is calculated by an expression (Numerical Expression 1) below, ranging from 1.0 to 1.99. The plurality of Ar components are each independently Aror Ar. The plurality of Ar components include at least one Arand at least one Ar. Aris a group represented by a formula (2) below. Aris a group represented by a formula (3) below. A molar composition ratio represented by Ar/(Ar+Ar) ranges from 45 mol % to 99 mol %. 

Bischloroformate composition, bischloroformate composition production method, bischloroformate composition-containing solution, polycarbonate resin, polycarbonate resin production method, coating liquid, electrophotographic photoreceptor, and electrophotographic device

An organic electroluminescence device including: an anode; a cathode; two or more emitting units that are disposed between the anode and the cathode, each unit having an emitting layer; and a charge-generating layer that is disposed between the emitting units, wherein the charge-generating layer comprises an N layer nearer to the anode and a P layer nearer to the cathode, and the P layer comprises a compound represented by the following formula (I). 

Organic electroluminescent element

A polycarbonate copolymer includes: a repeating unit represented by a formula (1) below; and a repeating unit represented by a formula (2) below, in which the repeating unit represented by the formula (1) is formed from a bischloroformate oligomer having an average number of monomer units n represented by a formula (100) below in a range from 0.1 to 1.3. In the formulae (100) and (1), Arrepresents a group represented by a formula (3) below. In the formula (2), Arrepresents a divalent aromatic group. In the formula (3) below, Xrepresents a single bond or an oxygen atom. Reach independently represents a methyl group or an ethyl group. 

Polycarbonate copolymer, coating liquid using same, molded body, and electrophotographic photosensitive body

An electrophotographic photoreceptor that satisfies excellent transparency, abrasion resistance, and electrophotographic properties (including sensitivity and residual potential after light irradiation) all together is provided. Specifically, an electrophotographic photoreceptor and a resin composition that include therein (1) a polycarbonate resin (A) having a structural unit represented by the following formula (I) and (2) at least one selected from a polycarbonate resin (B) synthesized from a source material that includes therein a bisphenol represented by the following formula (II) and a polyester resin (B') synthesized from a source material that includes therein a bisphenol represented by the following formula (II). In formulas (I) and (II), each of R, R, R, R, R, and Rrepresents, independently from one another, a substituted or non-substituted alkyl group, a substituted or non-substituted cycloalkyl group, or a substituted or non-substituted phenyl group. Each of p, q, r, s, t, and u represents, independently from one another, an integer of 0 to 4. Rrepresents an alkyl group. X represents an alkylene group, an isopropylidene group, a sec-butylidene group, a cycloalkylene group, a cycloalkylidene group, or the like. Y represents a single bond or &#x2014;O&#x2014;. Each of mand nrepresents a composition ratio (mole ratio) of the structural unit in the round brackets. 

Electrophotographic photoreceptor and resin composition

A polycarbonate copolymer including a repeating unit represented by the following formula (1) and having a copolymerization molar ratio represented by Ar/(Ar+Ar) of 30 mol % or more and 47 mol % or less. In the formula (1), Aris a group represented by the following formula (2a) or (2b) and Aris a group represented by the following formula (3); and n is an average number of repetition and is 1.12 or more and 2.34 or less. 

Polycarbonate copolymer

A polycarbonate copolymer includes a repeating unit A represented by a formula (1) below and a repeating unit B represented by a formula (2) below, in which an abundance ratio represented by Ar/(Ar+Ar) is in a range of 35 mol % to 75 mol % and an abundance ratio represented by Ar/(Ar+Ar) is in a range of 25 mol % to 65 mol %, 

Polycarbonate copolymer, coating liquid using same, and electrophotographic photoreceptor

This invention relates to a polycarbonate copolymer having a structure formed of a repeating unit represented by the following formula (100): 

Polycarbonate copolymer, coating fluid using same, electrophotographic photoreceptor, and method for producing polycarbonate copolymer

A molded article produced by molding a coating solution that contains a polycarbonate resin represented by the following formula (1) has excellent transparency, good water repellency and oil repellency, a lower friction coefficient and excellent surface lubricity, having a capability of improving abrasion resistance. In the formula (1), Rrepresents a perfluoroalkyl group having 5 or more carbon atoms and 11 or more fluorine atoms or a perfluoroalkyl group having a specific structure; and W represents a divalent group including therein a specific structural unit.

Polycarbonate resin and coating solution containing same, and molded article produced by molding said coating solution

An indenofluorenedione derivative having a specific structure, which is useful as a material for organic electroluminescence devices because the derivative is excellent in heat resistance and can be vapor-deposited on a substrate at moderate temperature. An organic electroluminescence device including an anode, a cathode, and an organic thin layer between the anode and the cathode, which contains the material for organic electroluminescence devices in the organic thin layer, is driven at a low driving voltage and has a long lifetime.

Indenofluorenedione derivative, material for organic electroluminescent element, and organic electroluminescent element

An organic electroluminescence device including an indenofluorenedione derivative represented by formula (I): wherein Xand X, which may be the same or different, are any of specific divalent groups; Rto R, which may be the same or different, are a hydrogen atom, an alkyl group, and an aryl group, a heterocycle, a halogen atom, a fluoroalkyl group, an alkoxy group, an aryloxy group or a cyano group; and Rto Ror Rto Rmay be bonded to each other to form a ring.

Material for organic electroluminescence device and organic electroluminescence device

A material for an organic electroluminescence device including at least one of compounds shown by the following formula (Ia), (Ib), (IIa), (IIb), (III), (IVa) or (IVb): 

Material for organic electroluminescent element, and organic electroluminescent element

A material for an organic electroluminescence device including an indenofluorenedione derivative shown by the following formula (I): wherein Xand X, which may be the same or different, are any of specific divalent groups; Rto R, which may be the same or different, are a hydrogen atom, an alkyl group, an aryl group, a heterocycle, a halogen atom, a fluoroalkyl group, an alkoxy group, an aryloxy group or a cyano group; and Rto Ror Rto Rmay be bonded to each other to form a ring.

Disclosed is a novel compound useful as a constituent of an organic EL device. Also disclosed is a practical organic EL device using this compound. This organic EL device has low driving voltage, long life, and reduced leakage current. Specifically disclosed is a compound characterized by having at least one structure (1) shown below in a molecule. Structure (1) 

Organic electroluminescent device and material for organic electroluminescent device

An imide derivative represented by the following formula (A): wherein Rand Rare each a hydrogen atom, a halogen atom, a cyano group, an alkyl group, a fluoroalkyl group or an aryl group; at least one of Rand Ris a fluoroalkyl group; and Rand Rare each a substituted or unsubstituted benzyl group, an aryl group, a heterocycle, a fluoroalkyl group or an imide group.

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Sodegaura, Japan

Hironobu Morishita